C / C++ / MFC

#define AfxOutputDebugString(lpsz) \<br />
	do \<br />
	{ \<br />
		USES_CONVERSION; \<br />
		_RPT0(_CRT_WARN, W2CA(lpsz)); \<br />
	} while (0)<br />
#else

#define MAX 1024

class Base
{
public:
	void foo(int i)
	{
	if (i > MAX)
	{
		// error handling
	}
	else
	{
		do_foo(i);
	}
}

private:
	virtual void do_foo(int i) = 0;
};

class Derived : public Base
{
private:
	virtual void do_foo(int i)
	{
	// i is never > MAX here
	}
};

int main()
{
	Derived d;
	d.foo (1000);

	return 0;
}

#define MAX 1024

class Base
{
public:
	void foo(int i)
	{
	if (i > MAX)
	{
		// error handling
	}
	else
	{
		do_foo(i);
	}
}

private:
	virtual void do_foo(int i) = 0;
};

class Derived : public Base
{
public:
	virtual void do_foo(int i)
	{
		foo (i);
		// i is never > MAX here
	}
};

int main()
{
	Derived d;
	d.do_foo (1000);

	return 0;
}